SPI once half-duplex can't be re-used as full-duplex

[i404788]

Bug description

After a call to half_duplex_* any attempt to get back so far by manual register edits, but presumably also by stealing the SPI peripherals and re-creating it seems to fail.

Currently unable to continue testing due to missing hardware.

To Reproduce

spibus
    .half_duplex_write(
      mode,
      Command::None,
      Address::_24Bit(addr_spi_mode, mode),
      0u8,
      &(0u32.to_le_bytes()),
    )?;
let spi_config_fast = esp_hal::spi::master::Config::default()
        .with_frequency((23).MHz())
        .with_mode(esp_hal::spi::Mode::_0);
spibus.apply_config(&spi_config_fast);

// Do a SPI transfer here with an expected result; you'll get all 0x00.

Attempts to reconfigure registers (without success): i404788@0796e01

Expected behavior

When using half_duplex_write the data modes specified should be configured, when returning to the regular interface (tranfer/eh1) full-duplex is used again.

Environment

• Target device: ESP32-S3
• Crate name and version: main~52 (0.23.1-dev)

NOTE: split from the end of #2863